The Effectiveness of Problem-Based Learning-Based E-SWS on Sound Wave Material to Improve Students’ Critical Thinking Skills. Jurnal Penelitian Pembelajaran Fisika, [S. l.], v. 11, n. 2, p. 248–257, 2025. DOI: 10.24036/jppf.v11i2.29. Disponível em: https://jppf.ppj.unp.ac.id/index.php/jppf/article/view/29. Acesso em: 16 mar. 2026.